Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Pointer light tracking method, program, and recording medium thereof










Image Number 12 for United States Patent #8049721.

A pointer light tracking method wherein all black image and white square images located at four corners of the all black image are projected on the display, the display on which the all black image and the white square images are displayed is shot by a camera, a domain corresponding to the white square image is extracted from the obtained image data, central coordinates (x, y) of the extracted domain are computed, and a parameter necessary in performing distortion correction by use of projection conversion for coordinate expressing the position of the pointer light on the display is computed from the computed central coordinates (x, y) and central coordinates (X, Y) of the white square image.








 
 
  Recently Added Patents
Certified offer service for domain names
Active device
Foldable electronic devices including a first and a second magnet
Systems and methods for determining a file set
Method and system for providing risk information in connection with transaction processing
Method and apparatus for acquiring images of car license plates
System and method for determination and display of personalized distance
  Randomly Featured Patents
Micro-fluid ejecting device having embedded memory devices
Extruder with sealing die for abrasive material
Harsh environment rotatable connector
Virtual router discovery system
Portable speaker system
Transmission power control technique and wireless communications system using the same
Channel interface re-connection controlling method and file controlling apparatus
Method and apparatus for acquiring CT perfusion images
Method for identifying extender text table of electronic program guide in digital TV
Method for cleaning electrofilters and electrofilters with a cleaning device